package chapter8;

/**
 * @author lzy
 * @version v1.0
 * Create DateTime: 2019/3/8 11:22
 */
public class Music {
    public static void tune(Instrument i) {
        i.play(Note.MIDDLE_C);
    }

    public static void main(String[] args) {
        Wind flute = new Wind();
        tune(flute);
    }
}
